In a study designed to assess the virtues (or not) of climate model precipitation projections, Sun et al. analyzed "observations of monthly precipitation (1940-2009) over the global land surface using a new theoretical framework that can distinguish changes in global precipitation variance between space and time."

In doing so, the three Australian researchers report discovering that "on average, dry regions/months became wetter and wet regions/months became drier over the 1940-2009 period," and they say that "this conclusion holds in all available databases and also holds for 1940-1999." In addition, they further remark that the patterns observed "show no relationship to local or global changes in temperature," and that "if anything, these results constitute a slight decline in meteorological drought over the last 70 years."

Once again, some of the most basic predictions of the world's climate alarmists are found to be invalid for the entire world.

Additional References:

Benestad, R.E. 2006. Can we expect more extreme precipitation on the monthly time scale? Journal of Climate 19: 630-637.

O'Gorman, P.A. and Schneider, T. 2009. The physical basis for increases in precipitation extremes in simulations of 21st-century climate change. Proceedings of the National Academy of Sciences USA 106: 14,773-14,777.